Did the standard Das Boot exiting through the Subway. Das Boot, while not full of water, has a decent amount of pools to swim through. There is no water flow, though. The water in Das Boot is very cold. We had full wet suits in the 3mm to 5mm range and did alright as were were in and out of water. Had we encountered a higher water level, or more sustained swims, 5mm+ wetsuits would be needed.

Anchors are in good shape.

Water in the Subway is lower, with a slight flow, and is much warmer, but a wetsuit is recommended as we encountered folks without them shivering.

We had 4 people and it took 9 hours from Wildcat Cannyon Trailhead to Left Fork Parking Lot.

Did the standard Das Boot down the Subway and it was fantastic. Lots of water but all clean pools. All anchors were in decent shape and the canyon itself was really fun. Subway was cold and the water fantastic. 5mm wetsuits made for a very comfortable day. 4 people took just under 9hrs from Wildcat to the bottom Subway parking lot.

Extended version: Route finding past the subway trail was tough, road trip ryans maps came in very useful along with the Gaia mapping app. There were no cairns past the subway route. The approach was very long and tedious, lots of route finding and bush wacking. Once you make it to the top of the main assent finding your way down the other side is very tricky and dangerous. If you do make it to the bottom then its pretty easy going to the mouth of the canyon. The water was flowing at about 15cfs which made for nice cleaner water. Lots of water fall rappels and down climbs. Total trip took 12 hours with two people moving fairly efficiently. Long swims and log jam obstacles , no real keepers due to flowing water. One of My favorite canyons so far. Would def do it again.

We entered upper Das Boot from the top, as recommended by RoadTripRyan. Finding the route down into Wildcat Canyon to the point where the Left Fork (Das Boot) begins is a bit tricky. You have to go very high to the base of the cliffs before heading down. The upper section had a couple of nice rappels. One was a floating disconnect and would be a keeper pothole if not for a big friendly log providing a bomber handhold at the exit to it. Anchors were good and it seems like this upper section is getting more popular. It is indeed a very long day, longer than expected. The hike back out to the TH is only 1500 feet or so of elevation gain, but feels much longer at the end of the day in the heat.

Upper entrance to Left Fork, exit up Russell Gulch. The canyon was completely full after the recent rainstorms, water was trickling through the canyon. We had 4/3 wetsuits on and all got pretty cold. Since the water was flowing, it was mostly pretty clean. It felt like we spent more time swimming/wading than we did outside of the water. Anchors were in good shape, but there were a couple that are going to need new webbing at some point in the next few months. We downclimbed a couple of the drops that had webbing, so we didn't inspect those anchors. It took us 10 hours car-to-car with a group of 4 moving at a pretty leisurely pace, I thought it would be a much shorter day.

Lower Das Boot to the Subway- Wasn't flowing until about halfway through. Water was clear after that. Hot day (reported to be a high of 88), but pleasant hiking weather. 2 of 3 of us wore dry suits with fleece and were comfortable. We probably would've been okay with our 3/4 wet suits. the other wore a long 3/4 wet suit on top of a shorty and didn't seem to get too cold but kept moving and went ahead to sit in the sun.

Flowing, all the way full with a few spots of pine debris but otherwise very clean. One of the log jam raps even landed in 6 inches of sparkling foam. Recent rain water made it very bearable with a full wetsuit, pretty much a perfect descent. Didn't see another human until the first Subway rap.

We ended up doing the upper canyon as well, approaching it from Wildcat Canyon trail, about a mile past the das Boot approach and before the actual top of the left fork drainage. This added about 3/4 mile more slot with a number of small log jam raps and downclimbs, quite enjoyable. If you do go up this way, make sure you get into the right canyon (starting at the seeps) above das boot if you only have the shorter rope as there is a longer rap that can be avoided that is in the next canyon over. Had to do some sketchy scrambling to get back over to left fork.

This information is now probably outdated because of all the rain Zion received last week - but when we did Das Boot into Subway, the Das Boot section had very little swimming - just a couple of short pools. No "flow." Much of it is sanded up so water was not as deep. Still a nice section of canyon with some photogenic spots. Wetsuits still used by all.

Little bit of flow throughout the canyon so there was fresh, not particularly cold water throughout. Also a lot of loose sand in the pools, the kind that might suck a poorly tied shoe right off. Only ended up rappelling at two locations, one log jam and the final rap. Final rap has anchors on bushes. One at the shelf, bush did not seem to be stable (roots moved in the sand a lot). Used another anchor set far back from but runs the rap through the waterway. 120ft of rope was more than enough to make the distance for the rap and the pull. Had to swim far back for the pull and do so while swimming.

It rained hard during the early morning hours of August 6th, so Das Boot was flowing when we went through. The hallways and potholes were very full of sand which made passage relatively easy. The fresh rainwater was warm, so my 4/3 wetsuit was almost overkill. Booties and gloves not required right now.

Canyon in good condition, no flow, no obstacles worth mention beyond the usual. Cold but tolerable with a 3/2 wetsuit. Pools were slightly stagnant and smelly, but I suspect the rain that happened on the 7th probably gave them a bit of a refresh.

First time through. Based on recent reports and reading online I thought that there would be more water. Everyone wore 4/3 and were plenty warm. 2-3 swims. One awkward rap off a log and a 3 foot chunk fell out of the bottom of the log. Last rap there was an anchor off a small tree (live), backed up poorly by some webbing on a rock this is creating a new rope groove. We descended down the water course.

First time through but from what I'd researched and how the canyon appeared I would say it was definitely on the low water side. Two swims, a couple chest deep pools and lots of knee to butt deep. Did two raps. Lots of log jam downclimbing. I wore a 3/2 and was fine until I got a hole straight through to my butt. Two others had 4/3s and were fine.

Group of three out the Subway in 10 hrs. Maybe 3 of that was in Das Boot.